private void button9_Click(object sender, EventArgs e) { welcome Wlcm = new welcome(); Wlcm.Show(); this.Hide(); }
private void button1_Click(object sender, EventArgs e) { welcome op = new welcome(); if (textBox1.Text == user && textBox2.Text == pass) { op.Show(); this.Hide(); } else { MessageBox.Show("Invalid Username or Password"); } }
private void button1_Click(object sender, EventArgs e) { string name = this.textBox1.Text; string password = this.textBox2.Text; if (name.Equals("admin") && password.Equals("123")) { MessageBox.Show("登录成功"); this.Hide(); welcome w = new welcome(); w.Show(); } else { MessageBox.Show("密码或账号错误!"); this.textBox1.Clear(); this.textBox2.Clear(); } }
public bool Select(hostelClass h) { bool isSuccess = false; SqlConnection conn = new SqlConnection(myconnstring); DataTable dt = new DataTable(); try { string sql = "SELECT * FROM hm_login WHERE username=@username AND password=@password"; SqlCommand cmd = new SqlCommand(sql, conn); cmd.Parameters.AddWithValue("@username", h.username); cmd.Parameters.AddWithValue("@password", h.password); SqlDataAdapter adapter = new SqlDataAdapter(cmd); conn.Open(); int i = cmd.ExecuteNonQuery(); adapter.Fill(dt); if (dt.Rows.Count > 0) { UserID = h.username; welcome settingsForm = new welcome(); settingsForm.Show(); isSuccess = true; } else { MessageBox.Show("Please enter Correct Username or Password"); } } catch (Exception ex) { MessageBox.Show("Failed"); } finally { conn.Close(); } return(isSuccess); }
private void home_Click(object sender, EventArgs e) { welcome f = new welcome(); this.Hide(); f.Show(); }